Elastic tire.



R. FUKUDA,

ELST|C TIRE.

v APPLICATION FILED MAR. 28, 1916 l ,238,25, Patented Aug. 28,1917.

2 SHEETS-SHEET I.

R. FUKUDA.

ELASTIC TIRE.

FILED MAR 6.

Patente Aug. 28,1917.,

2 SHEETS-SHEET 2- l #A @m y .27m/077% FAW/a F1a/cada n @MDM Cf RISUKE FUKUDA, OF YOKOHAIVIA, JAPAN.

ELASTIC TIRE.

Specification of Letters Patent. i lllfttmmt-@LI fitug, 2S, JJL?.

Application filed' March 28, 1816. Serial No. 87,158.

lie it known that l. llisiutn FUKVDA, a. 'suhjeet olf the llmperor of Japan. residing at No. T lehome, Yoshida-lvl'aehi, Yokohama, Japan, have. invented new and useful lmprovemeuts in Ylllastiel Tires, otl which I the. following is a speeitieation.

This invention relatesto improvements in au' elastie tire and it eonsists ot' the oomhinatiou of the usual outer easing with a spongy eore.

The ohjeet oiE this invention is lo inale a solid non-puneturahle tire, dis'iensiug with the ordinary pi'ieilmatie tulie.

.ln the aeeoinpanying drawings t'orming part thereot, l have illustrated a form of embodiment ot' the invention, in whit-li drawings similar referentie characters designate corresponding parts, and in which:

Figure 1 is a perspeetive view of' a part ot' the tire laid fiat and Fig. 2 is a transverse sectional view ot the tire.

Fig. 3 is a perspeetive view ot' a part of a. tire of a modified torni. Fig. Lt a transverse sectional view thereof.

Figa?) is a `ierspeetiver-view of a part ot another modi edtorm. Fig. (l is a transverse. seetional view and Fig. T a longitudi'nal sectional View of the forni shown in Fig. 5.

ln the drawings, 1 designates a spongy ruhher belt having number of loi'igitudinal ridges which when folded inwardly form a complete eirele in eross section when compressed in a tire easing.

.ln the ronstii'uetion shownin Figs. 1 and the helt. 1 has three longitudinal ridges Q. 5l and 4 on its inner surface. The central [ridge t is a semi-circle in its cross section and the ridges Q and i3 have a semi-egg A shaped Cross section.

A eomplete tire comprises a eomhination of theI helt 1 with the outer casing The. belt 1 is fastened. to the inside of the easing` 5 h v pasting or any other sui'tahle means. lf desired. these members may he placed without any fastening means. The outer easing 5 and the belt 1, thus eonneeted. are rolled inwardly together and they are to he attaehed to the rim 6. lfvhen they are rolled inside, the ridges 2. S and it contacting eaeh other with their surfaces, form a solid spongy core of a complete. eireular section.

By this ronstrnetion, the tire has no neeessity of charging with air and there :is

vreeess to position the,

no ohjeetion at all to its being punetured and also its eonstruetion is very simple.

ln the construction shown in Figs. 3 and ll, the holt 1 has two ridges Q and 3 having a proper sertionv to form a Core of a circular sei-tion when the belt 1 has been rolled inside.

'lhe ridges may he, arranged laterally, if desired. Figs. 5 to 7 show this modiliration. ln this modifitaition7 a set of ridges. consisting ot members 7 and 8, is provided laterally on one tace of the belt 1 and this set of the ridges has a proper form to eoinplete a circular disk when the helt is rolled inside. A uuuiher of such sets of the ridges is provided parallel along the, len th ot' the helt 1. leaving au equal spareI '10 etween 'eaeh set. By this construction, the weight ot the tire may he greatly deereased and it may also he used for light, Wheels without any objections.

1. (-ore for tires eomprising a strip of yieldahle material having longitudinal ridges along its edges and a longitudinal recess l'ietween the ridges. said ridges being substantially semi-egg shaped in ross seetion, said strip lit-ing 'Foldable along said inner l'aees of said ridges in abutting relation to completely iill said recess. y

eore ,for tires comprising a stri ot material having longitudinal ridges aihng its edges and a longitudinal ret-ess between the ridges and also provided with an interniediate longitudinal ridge in said recess spaeed from the aforesaid ridges. the out-er ridges being t'oldal'ile to position the inner 'fares ot' the outern'iost. ridges in aloutting relation with each other and with said intermediate ridge to eompletely lill said recess.

3. A (fore for tires eoi'nprising a strip of material having longitudinal ridges along its edges and also having a relatively narrow longitudinal reoess between the ridges, the inner tat-es of the ridges tapering toward the onter edges oi" the strip.y said ridges beof the ridges in al'iutting relation throng out the length ot the core, to completely fill said reeess.

4. vehicley tire, eomprising a easing, a core formed of a strip ot yieldahle material provided with longitudinal ridges and an intervening recess, said strip heing told- ]ng r'oldahlo to position said tapering faees able inwardly from its edges to dispose the inner feces of seid ridges into abutting le lation throughou 'the entle aree. of sai faces and completely fill seid recess and thereby provide a solid eoe.

5,A Core for tires composed of a st'p of yeldable meterie gol-@vided with eppostely disposed spaced x'dges, the strip bef ing folable to position the inner feces of 10 'the ridges in abutng reeton to compeey Leeem F111. said recess and render the com solid throughout its length.

In testimony whereof have signed my name to this specification in the presence of two subscribing witnesses.

RISUKE FUKUDA. 

